Professor-X has been missing in action ever since the end of the onslaught saga. Now after Operation Zero tolerance he has disappeared from his holding cell and the x-men must race around the world to find him when cerebro detects two Xavier's.

Magneto returns to claim the island of Genosha as a new safe haven for Mutants.

The X-Men team is splintered by a vicious, unrelenting Xavier. Team-members go their separate ways, except for Storm, who ostensibly stays to help Xavier recruit a new team.

Apocalypse begins to gather the Twelve. A group of mutants that he wants to drain and use their powers to amplify his own. The twelve mutants are Magneto, Cable, the Living Monolith, Charles Xavier, Sunfire, Polaris, Bishop, Cyclops, Iceman, Storm, Jean Grey, and Mikhail Rasputin.

Third phase of the X-Men's Krakoan era.

When Corsair and the Starjammers are kidnapped by a symbiote gang, the O-5 X-Men team up with Venom for a rescue mission.

Venus has been kidnapped and the Agents will scour the Earth to find her! The Uranian needs a bigger boost to enable his mind to scan the globe, and intel suggests the one machine that can help is CEREBRA- which brings the Agents of Atlas head to head with no less than THE X-MEN!

Stryfe's masterpiece of revenge on his numerous enemies.

Crossover between the events Dawn of X and Reign of X.

Age of Apocalypse/Astonishing X-Men/X-Treme X-Men crossover that resulted in the destruction of the AoA Universe.

The X-Men are reunited but must now fight for their lives against the cyborg Cameron Hodge on the mutant enslaving island of Genosha, along with the New Mutants, and X-Factor.

X-O Manowar invades the Vine home world.

A 2013 Valiant Entertainment Crossover.

Deceased Europan Pop sensation Henrietta Hunter is back from the dead and on her comeback tour – and it's up to the celebrity mutant super-team X-Statix to keep her alive … again! Can the fame-hungry team of super-mutants take a backseat to the white-hot celebrity – especially when she becomes team leader?

X-Force re-establish themselves as X-Statix and face competition from TV's latest sensations O-Force, a child with massive power and Mr. Sensitive's mental unavailability following the death of U-Go Girl.

When the Pitiful One decides that he's tired of being dead, he assembles a posse of Marvel's deadliest villains to attack the world of the living. And it's up to Doctor Strange to stop him and his evil cohorts, but he needs help from X-Statix's Dead Girl.

X-Statix's Vivisector receives a cure for his mutation and discovers life as a normal person isn't all that great.

Doop, an extremely powerful member of X-Statix, suffers a literal brain seperation. The Avengers and X-Statix race to collect the pieces and the teams get into conflict all across the globe.

When Mr. Sensitive quits the team and a new villain arises calling himself "Bad Guy", X-Statix must face a villain who might be a lot closer to home than they'd hoped.

The X-Treme X-Men are looking for the Destiny diaries, which takes then all across the globe. However, along the way some team members don't survive...

The Young All-Stars are "drafted" by President Franklin D. Roosevelt to assist with safeguarding the scientists working on the "Manhattan Project."

The Young All-Stars attempt to assist Neptune Perkins' long lost grandfather. The grandfather has been discovered in the Artic living with the Dzyan by Nazi agents trying to steal the secrets of this ancient race.

Bedlam, Young Justice's first, is back. This time kidnaps Bart and forces him to make clones that run amok in time, ruining everything that is Young Justice...

Klarion, the witch boy reverses the ages of superheroes. The young become old, the old become young.

"Final Genesis" is a comic book arc, the first arc of Young X-Men. This arc is a "Divided We Stand" tie-in.

Yorick, Agent 355, and Dr. Mann try to outrun the Daughters of the Amazon but get hung up in Marrisville, Ohio.

At one point in time, all the males on the Earth die. All except a man named Yorick and his monkey named Ampersand.